EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L14470000AL Isoproturon, 10µg/mL in Acetonitrile, 10ml Price on request 684468 D4-1,5-Diaminopentane, 10mg Price on request S688767 Succinic Acid-13C4, 10mg Price on request